EP 1072580 A1 20010131 - PROCESS FOR PRODUCING CHLOROMETHYLPHENYLACETIC ACID
Title (en)
PROCESS FOR PRODUCING CHLOROMETHYLPHENYLACETIC ACID
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CHLOROMETHYLPHENYLESSIGSÄURE
Title (fr)
PROCEDE DE PRODUCTION D'ACIDE CHLOROMETHYLPHENYLACETIQUE
Publication
Application
Priority
- JP 9902125 W 19990421
- JP 11203198 A 19980422
Abstract (en)
A process for producing chloromethylphenylacetic acid represented by formula (II) which comprises reacting methylphenylacetic acid represented by formula (I) with chlorine gas in an inert solvent under photoirradiation or in the presence of a radical initiator. According to this process, the methyl group of the methylphenylacetic acid can be chlorinated without resort to toxic sulfuryl chloride as a chlorinating agent and thus highly pure chloromethylphenylacetic acid can be produced at a high yield while inhibiting the formation of by-products such as the dichloro compound and the alpha -chloro compound. <CHEM>
IPC 1-7
IPC 8 full level
C07C 51/363 (2006.01); C07C 57/58 (2006.01)
CPC (source: EP US)
C07C 51/363 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 1072580 A1 20010131; EP 1072580 A4 20050216; EP 1072580 B1 20101201; DE 69942998 D1 20110113; JP 3874925 B2 20070131; JP H11302220 A 19991102; US 6414186 B1 20020702; WO 9954275 A1 19991028
DOCDB simple family (application)
EP 99917085 A 19990421; DE 69942998 T 19990421; JP 11203198 A 19980422; JP 9902125 W 19990421; US 67379700 A 20001218